P0714 Transmission Fluid Temperature Sensor A Circuit Intermittent

P0714 indicates an intermittent transmission fluid temperature sensor A circuit fault. The temperature signal is dropping out or becoming implausible.

Code details

Generic OBD-II · P0

System: Transmission
Code type: Generic (SAE / ISO controlled)
Standard: SAE J2012 / ISO 15031-6

Diagnostic boundary

A diagnostic trouble code reports that a monitored test failed. It does not prove one specific part is bad, and manufacturer logic can add vehicle-specific conditions.

Do not condemn the fluid temperature sensor before checking connector and internal harness intermittents.

Symptoms of P0714

Harsh, delayed, or slipping shifts, or being stuck in one gear.
Check-engine light, sometimes with limp-home mode.
Flaring RPM or a shudder under load.

Common causes of P0714

Low or degraded transmission fluid.
A failing speed sensor, shift solenoid, or pressure-control circuit.
Wiring, connector, or internal hydraulic/mechanical faults.

Useful checks before replacing parts

Graph transmission fluid temperature during warm-up, road test, and harness movement to find sudden jumps or dropouts.
Check the internal or external temperature sensor circuit, connector pins, transmission case connector, and shared reference or ground.
Compare fluid temperature with ambient and engine temperature after a cold soak to identify an unrealistic sensor value.

Related OBD-II codes

These nearby transmission entries can help compare wording and pin down the fault area.